Improvement in hydrants



M.' ALLEN.

Hydrants.

Patentd April 14 lnventur:

Attorneys.

Per

NrrED STATES PATENT OFFICE.

MICHAEL ALLEN, on scHENEoTADY, NEW vonk.

IMPROVEMENT IN HVDRANTS.

Specification forming part of Letters Patent No. 1119,62, dated April14, 1874; application filed April 19, 1873.

To all rwhom it may concern:

Be it known that I, MICHAEL ALLEN, of Schenectady.l in the county ofSchenectady and State of New York, have invented a new and ImprovedHydrant, of which the following is a specification:

The invention will rst be fully described, and then pointed out in theclaim.

Figure l is a sectional elevation of my improved hydrant. Fig. 2 is asectional elevation of the lower portion on a larger scale. Fig. 3 is ahorizontal section on the line xx of Fig. 2, and Fig. 4 is a horizontalsection on the line e z.

Similar letters of reference indicate corresponding parts.

A represents a short vertical tube projecting from` the upper side ofthe branch B of the water-main. C is a flange inside ot' this tube atits base, whereon the large central tube D, for conducting the water tothe top of the hy! drant, is seated, with a ring or gasket of elasticpacking, E, to Vmake a water-tight joint. The tubel is pressed downfirmly on this seat 'by the rods F, connected with tube A by the spaceinside from being iilled with earth, also to hold the tube in place. Mis the valve, whichcloses against a seat in the lower end of tube D. Ithas two bars, N, extending a short distance upward from the upper sidein the guideways O, and joining onto the crosshead I?, through which thescrew Q works to open and closethe valve, said screw being itted in abridge-tree, It, for a bearing, with a collar, S, above and below toprevent end m0i tion, and at the upper end it connects by a square headwith the rod '.I, having a socket in which the head is tted, as shown,and eX tending up through the cap J at the top, where a free passage forthe water remaining in tube D, after the valve is shut, to escape; butwhen the valve is open the hole Y passes below passage X, and cuts oftthe escape, so that there is no unnecessary waste when the valve isopen, as in some other hydrants.

To pack the joint so as to prevent leakage between the bar N and thebottoni of the groove in which it works, I'have a thimble,'a, in thepassage X, an elastic ring, b, and an adjusting-nut, d, by which theinner end of the thiinble is pressed water-tight on the bar.

Having thns described my invention, I claim as new and desire to secureby Letters Patent- The waste-passages, arranged as described, incombination with the thimble a, elastic ring b, and adjusting-nut d, forthe purpose set forth.

MICHAEL ALLEN.

Witnesses:

JOHN CANTINE, WVM. VAN VAUNKEE.

